Get over her or talk to her? im confused!

so theres this girl and shes totally the hottest chick i’ve talked to. this year she started to sit next to me in class, everyday she would flirt with me and just play around with me, i started to play along too, i would comment her about how hott she looked and told her she was really cute etc. so one day i just broke out of the shell, i told her that i had a really big crush on her last year and that i think its coming back. she didnt believe me at first and thought i was messing with her. so i tell her im serious and that i really like her and would like to go out sometime. so we both agree on a day but its a week later because we have other things going on. so in that week we really get to know each other start having talks about sex and more sexual things. so everyday we would have these talks and we were both excited for the day we were going to go out. every night i would think of the things she told me that day and just think about her all day. she would be the only thing on my mind all day, work, gym, school, lunch, like all the time…so the day came and she asked me to pick her up. i go to her house meet her parents, her younger sister, her grandpa, all really nice people. and then we head out, she asks me if i’ve been as excited and jumpy as she has been, she tells me shes been thinking about this since last week. and i totally feel the exact same way. so we go eat at a restaurant, and then we go watch a movie, during the movie she starts to get all cuddly and stuff, then she starts ti rub my thigh and does this tickily thing which makes me laugh every time. i tell her to stop as other people are looking at us but she wont, so i start to mess around with her touching her and stuff, she enjoys and grabs my penis all of a sudden, so we’re both really aroused and right after the movie ends we rush to my car, we have sex in the back seat, not that comfortable but it was great, it was the best sex i’ve ever had, she was rally into it kept on saying my name and it was more than just making love we felt a connection. so after that i drop her off and i go home as well. that night i didnt sleep i couldnt stop thinking of what had just happened, i couldnt believe that it just happened. so she texts me telling me she could barely walk and how her hands are shaking. and what not. the next day we meet at class and she tells me she had the time of her life. and so everything is going good so far, so after a few days i ask her if she wants to go grab a coffee real quick and she tells me “we need to talk” so she tells me that we shouldnt see each other because she felt guilty, she felt guilty because she likes this other guy in a different state and she felt bad for what we did, we had this talk before, she told me about him when we were just friends but i also asked her if we were about to do anything would thinking of him or whatever hold you back? she said it depends on what we do, i told her everything, she says lets see what happens on the date. so now shes telling me shes feels guilty and that we should be just friends again and that would be better for both of us. i was really hurt that day because i felt really connected to her that night and she told me she did too, she said that after the whole night our feelings for lust just turn into more than that while were doing it because you start to love your partner. so its been 3 weeks since shes told me this and after another week she texts me telling me shes really horny, im like what? and in my mind im willing to do anything to have sex again, so i was actually busy that day so i told her we would make plans for some other day, and she doesnt reply. now i see her talking to this Asian guy and there flirting with each other and doing the same stuff we use to do. i dont think to the extent that we did but there flirting and talking and making me jealous and that asain dude ive known for a long time, longer than ive known the girl. so im having trouble deciding whether i should give up or just keep going at it because its killing me right now and everytime i see her i think of that night. i want to forget about it and just live life normally again but i cant, i cant stop thinking of her. she hasnt been talking to me lately, we say hi and bye but thats it, we dont really talk much. i want to be able to talk to her again like we normally could, i cant really explain the situation because its hard to explain, so i just want to ask, what should i do, how can i get over her, should i even get over her? talking isnt really helping but does anyone have any suggestions?